Home / 1,008,869,124.60-1,513,303,686.90-619,429,159.80

Finding the Fourth Proportional to 1,008,869,124.60, 1,513,303,686.90 and 619,429,159.80

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Solution

The fourth proportional to 1,008,869,124.60, 1,513,303,686.90 and 619,429,159.80 is: 929,143,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,869,124.60 : 1,513,303,686.90 = 619,429,159.80 : x
  2. Step 2: Convert to fraction form
    1,008,869,124.60/1,513,303,686.90 = 619,429,159.80/x
  3. Step 3: Cross multiply
    1,008,869,124.60x = 1,513,303,686.90 × 619,429,159.80
  4. Step 4: Simplify right side
    1,008,869,124.60x = 937,384,431,298,709,248
  5. Step 5: Solve for x
    x = 937,384,431,298,709,248/1,008,869,124.60
  6. Step 6: Final answer
    x = 929,143,739.70

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.